Cluster incandescent gas-lamp.



6%,449. I mama Feb. 4, I902.

s. JGSEPH.

CLUSTER INGANDESCE NT 6A3 LAMP.

\Applicatiou fild Nov. 2, 1901. (No Model.)

wnmsszs: A mfimoa (7,3 1 6/07 0 a 5 a s ATTORNEY.

iliviinio hTA Parent Cirricni SHELDON JOSEPH, F W'HEELING, \VEST VIRGINIA.

CLUSTER lNCANDESOENT GASi LAMP.

.SPECIFECATION forming part of Letters Patent No. 692,449, dated February 4, 1902. Application filed November 2, 1901. Serial ll'o. 80,840. (No model.)

To all whom it may concern:

Be it known that I, SHELDON JOSEPH, a citizen of the United States of America, and a resident of Wheeling, county of Ohio, and State of Vest Virginia, have invented certain new and useful Improvements in Cluster Incandescent Gas-Lamps, of which the following is a. specification.

My invention relates to certain new and useful improvements in cluster incandescent gas-lamps, and more particularly to improvements in mantle-supporting devices for cluster incandescent gas-lamps and to burnerbrackets especially adapted to cluster incandescent gas-lamps; and it consists in certain novel features of construction, which will hereinafter be fully described, and specifically pointed out in the appended claims.

The chief-object of my invention is to provide mantle-supporting means for cluster incandescent gas-lamps, consisting of a collar and wire mantle-supports, said collar providedwith means whereby the said mantlesupports arefirmlyseated and secured against lateral movement, thus holding the mantles in fixed positions with relation to the lamp.

'With this and other objects in view my invention consists in the peculiar construction to be hereinafter set forth, reference being had to the accompanying drawings, forming a part of this specification, and wherein- Figure l is a broken section of a portion of a cluster incandescent gas-lamp to which my invention is applied. Fig. 2 is a top plan View of the collar. Fig. is a cross-section of the same on the line 1-5 3, Fig. 2.

Like reference-nuinerals designate similar parts throughout the several views.

In the drawings, 1 is the lamp-stern, to

which is secured the burner-bracket 2 and on which the mantlesupporting collar is secured at a suitable point above said bracket. The collar consists of plate-l, having an integral shank 5. An annular channel 6 is provided in the upper face 8 of the plate 4 about the central opening '7, the wall 9 of which recedes, substantially as shown, from the edge of said; channel 6 to the upper face 8. Extend in'g vertically downward into or throush the shank 5 of the collar from said channel 6 is a plurality of holes 10, in which the vertical portion ll of the ma'ntlc-supporting Wires are seated.

In the uppervfaoe 8 of the collar I provide a plurality of radial channels or grooves 12, the inner ends of which register as to position with the points at which the holes 10 are located, said channels or grooves 12 being adapted to hold the horizontal portions 15 of said wires when seated or lying therein against lateral movement. By this construction the mantles 14, supported by hooks 15 on the outer ends of the wires which lie in the grooves 12, are securely held in position. The collar is held in position on the stem 1 by means of a' set-screw 16.

Tho burner-bracket is adapted for screwing on the stem 1 and consists of a head l'7, having integral supply-arms 18 and an integral shank 19, said supply-arms being made integral with the head, so as to obviate the objection to screwed supply-arms, which objection is occasioned by the turning of the ,arms in the head and a consequent breakage of the mantles 1 L suspended thereover by the upright arms 20 coming into contact with said mantles.

The shank 19 is provided with a plurality of annular grooves 21, in which the point of,

the set-screw which holds the globe-holder in position thereon is adapted to be seated. The globe-holder being of the usual construction is not shown in the drawings.

' Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In acluster incandescent gas-lamp, the combination with the stern, of a collar surrounding the same and having an annular channel about its central opening; and having vertical holes extending from said channel through the shank thereofland radial grooves in the face thereof, the inner ends of said grooves registering as to position with the said vertical holes, substantially as and for the purposes set forth and described.

2. In a cluster incandescentgas-lamp, the combination with the stem, of a collar sun rounding the same and. having a shank iherezontal portions adapted to lie within said raon and provided with an annular groove dial grooves, substantially as specified. :0 about its central opening, said collar having Signed by me at Wheeling, \Vest Virginia, vertical holes extending from said channel this 3d (lay of September, 1901.

5 into said shank, the upper face of said collar SHELDON JOSEPH.

having radial grooves therein, mantle-sup- Witnesses: p'ortingwireshaving vertical portionsadapted .T. VM. IIARRIS,- to be seated in said vertical holes and hori- II. E. DUNLAP. 

